2143404043124 has 12 divisors (see below), whose sum is σ = 3971601609444. Its totient is φ = 1008660726144.

The previous prime is 2143404043091. The next prime is 2143404043129. The reversal of 2143404043124 is 4213404043412.

It can be written as a sum of positive squares in 2 ways, for example, as 1717410250000 + 425993793124 = 1310500^2 + 652682^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143404043129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15760323779 + ... + 15760323914.

It is an arithmetic number, because the mean of its divisors is an integer number (330966800787).

Almost surely, 2^{2143404043124} is an apocalyptic number.

It is an amenable number.

2143404043124 is a deficient number, since it is larger than the sum of its proper divisors (1828197566320).

2143404043124 is a wasteful number, since it uses less digits than its factorization.

2143404043124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31520647714 (or 31520647712 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 2143404043124 its reverse (4213404043412), we get a palindrome (6356808086536).

The spelling of 2143404043124 in words is "two trillion, one hundred forty-three billion, four hundred four million, forty-three thousand, one hundred twenty-four".